Confidence region for Fisher statistics

Circle of angular radius \(\alpha\) (degrees) around the mean vector \(\mu\).

Usage

fisher_confidence(mu, alpha, n = 512L)

Arguments

mu

Object of class spherical

alpha

numeric. Angle in degrees.

n

integer. Resolution of the cone (number of points for the cone line)

Value

object of class "confidence_region"

See also

Other confidence: bingham_confidence(), bingham_ellipse(), confidence_ellipse(), stereo_confidence()

Examples

set.seed(20250411)
x <- rvmf(n = 100, Line(120, 55), k = 10)
mu <- sph_mean(x)
alpha <- sph_confidence_angle(x)

r1 <- fisher_confidence(mu, alpha = alpha)

plot(x, col = "grey")
points(mu, col = "red", pch = 16, cex = 1.5)
stereo_confidence(r1, col = "red")